ALESIA-9: changed the Report test so that it now fails, i.e. the fail…

…ure gets detected

(grafted from a278cfb417c4438c916762dde44593ba30750a86)

sessl-james/src/test/scala/tests/sessl/james/TestReport.scala

@@ -78,7 +78,7 @@ import org.junit.Assert._
     val files = new File(exp.reportName).list.toSet
     assertTrue("The directory for raw data, the auxiliary plotting methods, and the report itself should be there", files("raw") && files("plotting.R") && files("report.Rtex"))
     val dataFiles = rawDataDir.listFiles
-    assertTrue("There should be some files containing the raw data, and none of them should be empty.", dataFiles.length > 0 && dataFiles.forall(_.length > 0))
+    assertTrue("There should be 28 files containing the raw data, and none of them should be empty.", dataFiles.length == 28 && dataFiles.forall(_.length > 0))
   }
 
 }